3 years ago

Which statement describes the role of consumers in an ecosystem?

Chemistry

2 answers:

SOVA2 [1]3 years ago

5 0

Either C or D. Those r the answers that make more sense.

dangina [55]3 years ago

3 0

D is the correct answer

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By studying fossils, scientists get an idea of ....

Tema [17]

By studying fossils, scientists get an idea of what the organisms looked like, what they ate, and how they lived.

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3 years ago

The ion MnOis often used to analyze for the Fe2+ content of an aqueous solution by using the (unbalanced) reaction Mno+Fe2+ + Fe

dusya [7]

Answer:

B) 0.230 M

Explanation:

The first step is to balance the reaction between the Ferrous ion and the permanganate ion:

$5~Fe^+^2~+~MnO_4^-^1~+~8H^+~->~5Fe^+^3~+~Mn^+^2~+4H_2O$

Then we have to calculate the moles of $MnO_4^-$ :

$M~=~\frac{mol}{L}$

$mol~=~M*L$

$mol~=~0.033~M*0.0633L=~0.002088~mol~MnO_4^-$

Then using the molar ratio we can find the moles of $Fe^+^2$ :

$0.002088~mol~MnO_4^-\frac{5~mol~Fe^+^2}{1~mol~MnO_4^-}=0.01044~mol~Fe^+^2$

Finally we can calculate the molarity:

$M=\frac{0.01044~mol~Fe^+^2}{0.0455~L}=0.230~M$

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3 years ago

1. A charged group of covalently bonded atoms is known as

katrin2010 [14]

Its known as covalently bonded atoms

7 0

3 years ago

15 points!

Alex_Xolod [135]

Answer:

C: It is the difference between the total kinetic and potential energy in a system.

Explanation:

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3 years ago

What are the Eight types of bloodstain patterns ?

valentina_108 [34]

Passive bloodstain

Transfer pattern

Gunshot spatter

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3 years ago

Read 2 more answers